title: [Thyroid hydatid cyst: report of one case].
abstract: We report a 64 year-old male, living in a rural area, with a history of a thyroid nodule subjected to a fine needle aspiration 18 years ago. He consulted this time for a goiter associated to dyspnoea and dysphagia. A chest X-ray and a neck CAT scan showed a calcified nodule in the superior mediastinum of thyroidal origin, that displaced airways and blood vessels and a small thyroid nodule of uncertain origin. A thyroid scintigram showed a cold right thyroid nodule. The patient was operated, performing a subtotal thyroidectomy A calcified nodule measuring 8 x 6 x 6 cm and another nodule measuring 10 mm were found during the surgical exploration. The pathological examination of the surgical piece disclosed a calcified hydatic cyst and a focal nodular hyperplasia. The patient remains asymptomatic seven months after surgery.
authors.affiliation: Instituto de Cirugía, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile. jperez@uach.cl
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Pérez P
authors.forename: Orlando
authors.initials: O
authors.lastname: Felmer E
authors.forename: Cristian
authors.initials: C
authors.lastname: Carrasco E
authors.forename: Mauricio
authors.initials: M
authors.lastname: Gabrielli N
authors.forename: Carmen
authors.initials: C
authors.lastname: Torrijos C
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Bastías N
mesh_terms: D001707:Biopsy, Needle; D002114:Calcinosis / Q000473:pathology*; D004443:Echinococcosis / Q000473:pathology* / Q000601:surgery; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013961:Thyroid Gland / Q000473:pathology*; D016606:Thyroid Nodule / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy